| 摘要 |
PURPOSE:To obtain a low-price electric machine and apparatus simplified in structure and capable of being transferred with the whole installation by a method wherein a compensation tank in which a bag made of a soft material communicating to the atmosphere is accepted and an insulating oil is filled outside the bag is provided on a side wall of the electric machine and apparatus, and is communicated with the electric machine and apparatus through a communicating pipe. CONSTITUTION:The compensation tank 24 in which a bag 23 made of the soft material and communicated inside to the atmosphere is accepted, and the insulating oil 7 is filled outside the bag 23 is provided on the side wall of an electric machine and apparatus oil tank filled with the insulating oil 7. The lower section in the compensation tank 24 and the upper section in the electric machine and apparatus oil tank 22 are communicated with each other through the communicating pipe 25 provided with Buchholtz's relay 3 on the top and filled with the insulating oil 7 inside. In such a manner, the insulating oil 7 is prevented from being deteriorated keeping it from an exposure to the air with the simple structure and the electric machine and apparatus is designed so as to enable it to be transferred with the whole installation because of a conservator being not projected on the oil tank. Accordingly, it is not required more processes of overhaul and reassembly of the electric machine and apparatus for accepting it within the limit of transportation, and the cost can be reduced. |
